Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2011-04-26
2011-04-26
Marcelo, Melvin (Department: 2463)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C455S522000
Reexamination Certificate
active
07933218
ABSTRACT:
A method for allocating power and channels to connections in a multi-channel access based wireless communication system in which each connection is acting independently of the other. The quality of each channel of a connection is measured at successive time steps (n, n+1). The measurements from a previous time step (n) are used to allocate, in the following time step (n+1), an average power of all channels the connection uses as well as individual power settings in-between said channels. The average power is controlled using an outer fairness loop balancing the average channel power against average bit rate per channel. The individual power settings is controlled using an inner capacity loop allocating much power to good channels and restricted power to poor channels. Each loop has a respective target relation and the results of the loops are combined in order to determine transmission power in the next time step. The method is of distributed character and may execute on individual receiving nodes. Further, it may be applied in the up link or in the down link.
REFERENCES:
patent: 2003/0193907 (2003-10-01), Rezaiifar et al.
patent: 03019953 (2003-03-01), None
patent: WO 2006068565 (2006-06-01), None
International Search Report mailed Sep. 1, 2005.
Pietrzyk et al.: “Radio Resource Allocation for Cellular Networks Based on OFDMA with Qos Guarantees,” IEEE Communications Society, Global Telecommunications Conference 2004, vol. 4, pp. 2694-2699, XP010758015.
Almgren Magnus
Skillermark Per
Marcelo Melvin
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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